Low-Input-Voltage, 500mA LDO Regulator
with
RESET
in SOT and TDFN
MAX1589A
ABSOLUTE MAXIMUM RATINGS
IN,
SHDN, RESET
to GND .....................................-0.3V to +4.0V
OUT to GND ................................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (TA = +70°C)
6-Pin Thin SOT23 (derate 9.1mW/°C above +70°C) ....727mW
6-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ..................................................... +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
IN
= (V
OUT
+ 0.5V) or 1.8V, whichever is greater;
SHDN
= IN, C
IN
= 1µF, C
OUT
= 4.7µF, T
A
= -40°C to +85°C, unless otherwise
noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Input Voltage
Input Undervoltage Lockout
Output Voltage Accuracy
Maximum Output Current
Current Limit
Ground Current
Dropout Voltage
Load Regulation
Line Regulation
Output Noise
PSRR
SHUTDOWN
Shutdown Supply Current
SHDN
Input Logic Levels
SHDN
Input Bias Current
Turn-On Delay
RESET
OUTPUT
Reset Threshold Accuracy
RESET
Output Low Voltage
V
OL
V
OUT
falling (1.7% typical hysteresis)
I
RESET
= 100µA
V
IN
= +1.0V, I
RESET
= 100µA
80
82.5
1.5
3
85
100
100
%V
OUT
mV
I
OFF
V
IH
V
IL
I
SHDN
SHDN
= GND
V
IN
= 1.62V to 3.6V
V
IN
= 1.62V to 3.6V
V
SHDN
= 0V or 3.6V
T
A
= +25°C
T
A
= +85°C
1
5
90
T
A
= +25°C
T
A
= +85°C
1.4
0.6
300
0.001
0.01
1
µA
V
nA
µs
I
OUT
I
LIM
I
Q
V
IN
- V
OUT
∆V
LDR
∆V
LNR
SYMBOL
V
IN
V
UVLO
V
IN
rising (180mV typical hysteresis)
I
OUT
= 150mA, T
A
= +25°C
I
OUT
= 1mA to 500mA,
V
IN
= (V
OUT
+ 0.5V) to +3.6V
Continuous
V
OUT
= 96% of nominal value
No load
I
OUT
= 500mA
Dropout (Note 2)
I
OUT
= 500mA, V
OUT
≥
1.8V (Note 2)
I
OUT
= 1mA to 500mA
V
IN
= (V
OUT
+ 0.5V) to +3.6V, I
OUT
= 100mA
10Hz to 100kHz, I
OUT
= 10mA
f < 1kHz, I
OUT
= 10mA
-0.15
CONDITIONS
MIN
1.62
1.30
-0.5
-1.5
500
550
850
70
90
70
175
0.02
+0.01
86
70
350
0.5
+0.15
mV
%
%/V
µV
RMS
dB
1150
140
µA
TYP
MAX
3.60
1.60
+0.5
+1.5
%
mA
RMS
mA
UNITS
V
V
From
SHDN
high to OUT high, V
OUT
= 1.5V
2
_______________________________________________________________________________________
ROCHESTER [ Rochester Electronics ]
